Wrench.



No. 778,704. PATENTED DEC. 27, 1904. H. PHBLAN.

WRENCH.

APPLICATION FILED JULY 6, 1904.

" INVENTOR ATTORNEYS UNTTED STATES Patented December 27, 1904.

HARRY PHELAN, OF JIMENEZ, MEXICO.

WRENCH.

SECIFICATION forming part of Letters Patent No. 778,704, dated December27, 1904.

Application filed July 6, 1904. Serial No. 215,464.

To al?, 107mm, it may concern:

Be it known that 1, HARRY PHELAN, a citi- Zen of the United States ofAmerica, and a resident of Jimenez, Republic of Mexico, have invented anew and Improved Vrench, of which the following is a full, clear, andexact description.

This invention relates to improvements in wrenches of the type having aiixed jaw and a sliding jaw, an object being to provide a wrench of thischaracter that will be comparatively light yet strong and that may bequickly adjusted to a nut or pipe.

1 will describe a wrench embodying' my invention and then point out thenovel features in the appended claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side view of a wrench embodying my invention. line a' ofFig. 1. Fig. 8 is a similar section, but showing' the parts in differentposition.

`Fig'. 4 is a perspective view of the lockingblock employed. Fig'. 5 isa section on the line y y/ of 6, and Fig'. 6 is an inner face view ofthe movable jaw.

The handle or shank of the wrench consists of two bar members 1 2, whichare spaced apart, and their inner faces are provided with teeth 3. whichare arranged at a transverse incline. Secured to the bars 1 2 is a fixedjaw 4. As here shown, the jaw 4 is removably connected to the bars bymeans of screws 5. Movable lengthwise of the shank is a jaw 6, having achamber 7, in which a lockingblock 6 is arranged for slight rotarymovement. The block on its opposite sides is inclined to correspond tothe incline of the inner faces of the bars 1 2, and on these inclinedportions of the block are ratchet-teeth 9 for engaging with theratchet-teeth 3. The block 8 is attached to a rod 10, which has bearingsin plates 11 12, removably secured to the front and rear sides of thejaw 6, and this rod 10 extends rearward through an opening in a yoke 1B,removably attached to the outer ends or near the outer ends of the bars1 2, and this rod 10 serves to guide and strengthen the mov- Fig'. 2 isa section on the able part. At one side the jaw 6 is provided with arecess 14 to receive a plate 15, secured to the block 8 and designed tobe engaged by a person to rock the block out of engagement with theteeth 3 when it is desired to move the jaw 6 along the shank.

Arranged on the inner side of the sliding jaw 6 is a gripping' memberconsisting of a block 16, having ratchet-teeth 17 arranged in reversedirection to the ratchet-teeth 18 on the jaw 4. This gripping member hasswinging and sliding longitudinal movement with relation to the jaw 6.As here shown, the gripping member is connected to the jaw 6 by lowerlinks 19 at opposite sides, which swing on pins 20, connected to theblock 16, and a pin 21, connecting said links, passes through atransverse slot 22, formed through the jaw 6, this slot being inclinedupward and forward, so as to throw the part 16 inward, as will behereinafter described.

1t will be noted that the sides of the jaw are recessed where the links19 engage therewith, so that the outer surface of the links .will notproject beyond the outer surfaces of the jaw.

Upper links 23 are mounted to swing on pins 24, attached to the jaw 6,and pins 25 on the member 16 pass into slots 26 in the links 23. On itsside adjacent to the jaw 6 the member 16 is provided with a shoulder 27,designed to be engaged by a pawl 28, mounted to swing in a recess 29,formed in the jaw 6, and this pawl is held yieldingly against the member16 by means of a spring 30, operating in a perfoi-ation 31 in the jawand engaging againsta pin 32, which bears upon the paWl.

1n operation when it is desired to slide the jaw 6 along the shank thelocking-block is t0 be rotated to disengage its teeth from the teeth 3,as indicated in Fig. 3. Vhen proper adjustment of the ljaw 6 has beenmade, the block is to be turned back to engage its teeth with the teethof the bars 1 2, as indicated in Fig. 2. Upon engaging the jaw 4 and thegripping member 16 with the nut or pipe the said gripping member will beiirst swung inward or toward the jaw 6; but immediately upon movement ofthe handle or shank in the direction to remove the nut or to unscrew thepipe the gripping' member will be moved IOO slightly toward the bar 2,and the lug 28 by engaging with the shoulder 2T will cause the grippingmember to move toward and tightly grip the nut or pipe.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. A wrench comprising a fixed jaw and a sliding'jaw, a gripping member having swinging link connection with the slidingjaw and having a shoulder on its side adjacent to said jaw, and aspring-pressed pawl arranged in said jaw and adapted to engage with saidshoul der.

2. A wrench comprising a shank consisting of two spaced bars, the innersides thereoic being transversely inclined and provided with teeth, ajaw attached to one end of the bars, a jaw slidable on the bars andhaving a cha1nber, a locking-block arrranged in Said chamber, a rod towhich the block is connected, plates at the front and rear side ot' thesliding jaw forming bearings for said rod, a thumbpiece on said block,and ayole attached to the outer ends ot' said bars and having aperforation through which the rod extended from the locking-block mayslide.

3. A wrench comprising a shank, a fixed jaw thereon, a jaw mounted toslide on the shank, means for locking the sliding jaw, a grippingmember, link connections between Said gripping member and the movablejaw, and a pawl mounted to swing in the movable jaw to cause the outwardmovement otl the gripping member during its longitudinal movement.

In testimony whereof I have signed my name to this speci [ication in thepresence of two subscribing witnesses.

HARRY PHELAN.

fitnessesz G. C. CAROTHERS, J. P. VVANTZLOCHEN.

